GB/T 46689-2025 Display specification for the man-machine interface of on-board signaling system of the urban rail transit English, Anglais, Englisch, Inglés, えいご
This is a draft translation for reference among interesting stakeholders. The finalized translation (passing through draft translation, self-check, revision and verification) will be delivered upon being ordered.
ICS 13.220.10
CCS H 57
National Standard of the People's Republic of China
GB/T 46689-2025
Display specification for the man-machine interface of on-board signaling system of the urban rail transit
城市轨道交通信号系统车载设备人机界面显示规范
Issue date: 2025-10-31 Implementation date: 2026-05-01
Issued by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
the Standardization Administration of the People's Republic of China
Contents
Foreword
1 Scope
2 Normative References
3 Terms and Definitions
4 Abbreviations
5 General Requirements
6 Display Elements
7 Interface Division and Content Display
8 Validation Methods
Appendix A (Normative) Display Area Icons and Their Meanings
Appendix B (Informative) Sounds
Appendix C (Informative) Operation Interfaces
Appendix D (Informative) Prompt Text Content and Their Meanings
References
1 Scope
This document specifies the general requirements, display elements, interface division, and content display for the human-machine interface (HMI) of on-board equipment in urban rail transit signal systems. It also describes validation methods.
This document is applicable to the display, operation, and maintenance of the HMI for on-board equipment in urban rail transit signal systems based on Communication-Based Train Control (CBTC).
2 Normative References
The contents of the following documents constitute indispensable provisions of this document through normative references in the text. For dated references, only the edition corresponding to that date applies. For undated references, the latest edition (including all amendments) applies.
GB 18030 Information Technology — Chinese Coded Character Set
GB/T 46690 Technical Specification for Alarm Information and Fault Classification of Urban Rail Transit Signal Systems
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
Recommended Speed
The permitted speed calculated comprehensively by the signal system under the Automatic Train Protection (ATP) function.
3.2
Wet Rail Mode
An operational control mode that adjusts train speed, traction force, braking force, and tracking distance under conditions such as rain, snow, icing, or other causes leading to slippery rail surfaces, to reduce the risk of train skidding.
4 Abbreviations
The following abbreviations apply to this document.
AM: Automatic Train Operating Mode
ATO: Automatic Train Operation
ATP: Automatic Train Protection
CAM: Creep Automatic Mode
CBTC: Communication-Based Train Control
CM: Coded Train Operating Mode
FAM: Fully Automatic Train Operating Mode
RGB: RGB Color Model
RM: Restricted Train Operating Mode
RRM: Remote Restricted Train Operating Mode
VOBC: Vehicle On-Board Controller
5 General Requirements
5.1 The human-machine interface of on-board equipment in urban rail transit signal systems (hereinafter referred to as the on-board equipment HMI) shall use icons, text, or sounds to display or prompt the driver with train operation information.
5.2 The display of the on-board equipment HMI shall be clear in content and unambiguous in meaning.
5.3 The on-board equipment HMI in the controlled driver’s cab shall remain illuminated and in a displayed state.
5.4 When the on-board equipment HMI is integrated with the vehicle display screen, the display area shall be reasonably divided. Relevant requirements are specified in Clause 7.
5.5 The display resolution of the on-board equipment HMI shall not be lower than 1,024 × 768 pixels.
5.6 The size of display elements on the on-board equipment HMI shall be appropriate to the dimensions of the display screen.
5.7 When information input is required, the on-board equipment HMI shall provide an information input interface.
6 Display Elements
6.1 Color
6.1.1 The colors used for display should include white, black, red, yellow, light gray, light green, orange, and dark blue. Recommended RGB values for these colors are provided in Table 1.
Table 1 Recommended RGB Values for Colors
6.1.2 The background color of the on-board equipment HMI display shall be black.
6.1.3 The display content of the on-board equipment HMI should be distinguished by color according to urgency level, with emergency attention or emergency action information displayed in red.
6.2 Border
6.2.1 Text information requiring driver confirmation or action shall be displayed with a flashing border, and the flashing border shall disappear after the driver confirms or takes action.
6.2.2 The flashing border shall be yellow, and the flashing frequency should preferably be 1 Hz.
